9) Given the following valid argument, fill in the reasons for the formal proof.
Do not forget to fill in the line numbers for each reason
w v ~b
b \/ ~z
(w \/ z) \/ a
av p
Statement
Reason
1. b \/ ~z
1.
2. b
2.
3. w v ~b
3.
4. w
4.
5. w \/ z
5.
6. (w \/ z) \/ a
6.
7. a
7.
8. a \/ d
8.
